1 files changed, 145 insertions, 0 deletions
diff --git a/checksums.h b/checksums.h
new file mode 100644
index 0000000..8c5da9b
--- /dev/null
+++ b/checksums.h
@@ -0,0 +1,145 @@
+#ifndef REPREPRO_CHECKSUMS_H
+#define REPREPRO_CHECKSUMS_H
+
+#ifndef REPREPRO_ERROR_H
+#include "error.h"
+#warning "What's hapening here?"
+#endif
+#ifndef REPREPRO_STRLIST_H
+#include "strlist.h"
+#endif
+
+enum checksumtype {
+		/* must be first */
+		cs_md5sum,
+		/* additionall hashes: */
+#define cs_firstEXTENDED cs_sha1sum
+		cs_sha1sum,
+		cs_sha256sum,
+		cs_sha512sum,
+#define cs_hashCOUNT cs_length
+		/* must be last but one */
+		cs_length,
+		/* must be last */
+		cs_COUNT };
+
+struct checksums;
+
+extern const char * const changes_checksum_names[];
+extern const char * const source_checksum_names[];
+extern const char * const release_checksum_names[];
+extern const struct constant *hashnames;
+
+struct hashes {
+	struct hash_data {
+		const char *start; size_t len;
+	} hashes[cs_COUNT];
+};
+
+
+void checksums_free(/*@only@*//*@null@*/struct checksums *);
+
+/* duplicate a checksum record, NULL means OOM */
+/*@null@*/struct checksums *checksums_dup(const struct checksums *);
+
+retvalue checksums_setall(/*@out@*/struct checksums **checksums_p, const char *combinedchecksum, size_t len);
+
+retvalue checksums_initialize(/*@out@*/struct checksums **checksums_p, const struct hash_data *);
+/* hashes[*] is free'd: */
+retvalue checksums_init(/*@out@*/struct checksums **, char *hashes[cs_COUNT]);
+retvalue checksums_parse(/*@out@*/struct checksums **, const char *);
+
+off_t checksums_getfilesize(const struct checksums *);
+
+/* get 0-terminated combined textual representation of the checksums,
+ * including the size (including the trailing '\0'): */
+retvalue checksums_getcombined(const struct checksums *, /*@out@*/const char **, /*@out@*/size_t *);
+
+/* get a static pointer to a specific part of a checksum (wihtout size) */
+bool checksums_getpart(const struct checksums *, enum checksumtype, /*@out@*/const char **, /*@out@*/size_t *);
+/* extract a single checksum from the combined data: */
+bool checksums_gethashpart(const struct checksums *, enum checksumtype, /*@out@*/const char **hash_p, /*@out@*/size_t *hashlen_p, /*@out@*/const char **size_p, /*@out@*/size_t *sizelen_p);
+
+/* check if a single checksum fits */
+bool checksums_matches(const struct checksums *, enum checksumtype, const char *);
+
+/* Copy file <origin> to file <destination>, calculating checksums */
+retvalue checksums_copyfile(const char * /*destination*/, const char * /*origin*/, bool /*deletetarget*/, /*@out@*/struct checksums **);
+retvalue checksums_hardlink(const char * /*directory*/, const char * /*filekey*/, const char * /*sourcefilename*/, const struct checksums *);
+
+retvalue checksums_linkorcopyfile(const char * /*destination*/, const char * /*origin*/, /*@out@*/struct checksums **);
+
+/* calculare checksums of a file: */
+retvalue checksums_read(const char * /*fullfilename*/, /*@out@*/struct checksums **);
+
+/* replace the contents of a file with data and calculate the new checksums */
+retvalue checksums_replace(const char * /*filename*/, const char *, size_t, /*@out@*//*@null@*/struct checksums **);
+
+/* check if the file has the given md5sum (only cheap tests like size),
+ * RET_NOTHING means file does not exist,
+ * RET_ERROR_WRONG_MD5 means wrong size */
+retvalue checksums_cheaptest(const char * /*fullfilename*/, const struct checksums *, bool);
+
+/* check if filename has specified checksums, if not return RET_ERROR_WRONG_MD5,
+ * if it has, and checksums_p put the improved checksum there
+ * (*checksums_p should either be NULL or checksums) */
+retvalue checksums_test(const char *, const struct checksums *, /*@null@*/struct checksums **);
+
+/* check if checksum of filekey in database and checksum of actual file, set improve if some new has is in the last */
+bool checksums_check(const struct checksums *, const struct checksums *, /*@out@*/bool * /*improves_p*/);
+
+/* return true, iff all supported checksums are available */
+bool checksums_iscomplete(const struct checksums *);
+
+/* Collect missing checksums (if all are there always RET_OK without checking).
+ * if the file is not there, return RET_NOTHING,
+ * if it is but not matches, return RET_ERROR_WRONG_MD5 */
+retvalue checksums_complete(struct checksums **, const char * /*fullfilename*/);
+
+void checksums_printdifferences(FILE *, const struct checksums * /*expected*/, const struct checksums * /*got*/);
+
+retvalue checksums_combine(struct checksums **, const struct checksums *, /*@null@*/bool[cs_hashCOUNT]);
+
+typedef /*@only@*/ struct checksums *ownedchecksums;
+struct checksumsarray {
+	struct strlist names;
+	/*@null@*/ownedchecksums *checksums;
+};
+void checksumsarray_move(/*@out@*/struct checksumsarray *, /*@special@*/struct checksumsarray *array)/*@requires maxSet(array->names.values) >= array->names.count /\ maxSet(array->checksums) >= array->names.count @*/ /*@releases array->checksums, array->names.values @*/;
+void checksumsarray_done(/*@special@*/struct checksumsarray *array) /*@requires maxSet(array->names.values) >= array->names.count /\ maxSet(array->checksums) >= array->names.count @*/ /*@releases array->checksums, array->names.values @*/;
+retvalue checksumsarray_parse(/*@out@*/struct checksumsarray *, const struct strlist [cs_hashCOUNT], const char * /*filenametoshow*/);
+retvalue checksumsarray_genfilelist(const struct checksumsarray *, /*@out@*/char **, /*@out@*/char **, /*@out@*/char **);
+retvalue checksumsarray_include(struct checksumsarray *, /*@only@*/char *, const struct checksums *);
+void checksumsarray_resetunsupported(const struct checksumsarray *, bool[cs_hashCOUNT]);
+
+retvalue hashline_parse(const char * /*filenametoshow*/, const char * /*line*/, enum checksumtype, /*@out@*/const char ** /*basename_p*/, /*@out@*/struct hash_data *, /*@out@*/struct hash_data *);
+
+struct configiterator;
+
+#ifdef CHECKSUMS_CONTEXT
+#ifndef MD5_H
+#include "md5.h"
+#endif
+#ifndef REPREPRO_SHA1_H
+#include "sha1.h"
+#endif
+#ifndef REPREPRO_SHA256_H
+#include "sha256.h"
+#endif
+#ifndef REPREPRO_SHA512_H
+#include "sha512.h"
+#endif
+
+struct checksumscontext {
+	struct MD5Context md5;
+	struct SHA1_Context sha1;
+	struct SHA256_Context sha256;
+	struct SHA512_Context sha512;
+};
+
+void checksumscontext_init(/*@out@*/struct checksumscontext *);
+void checksumscontext_update(struct checksumscontext *, const unsigned char *, size_t);
+retvalue checksums_from_context(/*@out@*/struct checksums **, struct checksumscontext *);
+#endif
+
+#endif